unix command to pause code example

Example 1: bash wait 3 seconda

sleep .5 # Waits 0.5 second.
sleep 5  # Waits 5 seconds.
sleep 5s # Waits 5 seconds.
sleep 5m # Waits 5 minutes.
sleep 5h # Waits 5 hours.
sleep 5d # Waits 5 days.

Example 2: pause bash script

function pause(){
 read -s -n 1 -p "Press any key to continue . . ."
 echo ""
}
 
## Pause it ##
pause
 
## rest of script below